一名 13 岁女性患者出现 18 个月的无痛性视力丧失和眼球突出。影像学检查结果高度提示她患有眶上动脉瘤性骨囊肿（ABC），为此她接受了完全手术切除。术后，她出现左侧偏瘫。计算机断层扫描血管造影（CTA）显示右侧颈内动脉（ICA）完全血栓形成。经过保守治疗，她的偏瘫症状在接下来的三周内得到了改善。组织病理学报告显示骨肉瘤伴有继发性 ABC，因此她被转诊接受放射治疗。随访 1.5 个月时，患者左下肢力量改善至 4  /5。她在没有支撑的情况下行走，左上肢力量为 4/5。© 2023。作者获得 Springer-Verlag GmbH 德国（Springer Nature 旗下公司）的独家许可。

A 13-year-old female patient presented with painless vision loss and proptosis for 18 months. Imaging findings were highly suggestive of a supraorbital aneurysmal bone cyst (ABC) for which she underwent complete surgical excision. Postoperatively, she developed left hemiparesis. Computed tomography angiography (CTA) revealed right complete internal carotid arterial (ICA) thrombosis. This was managed conservatively, and she improved in hemiparesis over the next 3 weeks. Histopathology report revealed osteosarcoma with secondary ABC, for which she was referred for radiotherapy. At 1.5 months follow-up, the patient's left lower limb power improved to 4 + /5. She was walking without support, and her left upper limb power was 4/5.© 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.